With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
ipivcDnaPacketSizeNegotiation
ipivc Dna Packet Size Negotiation
This attribute, if set to a value of local indicates that packet sizes can be negotiated locally at the interface irrespective of the remote interface. If set to a value of endtoEnd, then local negotiation is not permitted and packet sizes are negotiated between 2 ends of Vc.
Back to Nortel-Magellan-Passport-IpiVcMIB MIB page.
IPHost Network monitor allows you to monitor ipivcDnaPacketSizeNegotiation on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel speech servers right now.